South Dakota Well Data field records · 2026 survey

South Dakota Well Data › Lyman County

Lyman County, South Dakota: well depth, water level & drilling cost

✓ 526 SD DANR records · verified 2026-08-24

1,203 ftmedian well depth
975 ft–1,438 fttypical depth range
140 ftmedian static water level
1,140 ftmedian depth since 2016

How deep are wells in Lyman County, South Dakota?

The median drilled well depth in Lyman County is 1,203 ft, based on 524 wells with recorded depths in the state SD DANR database. Half of all wells fall between 975 ft and 1,438 ft; 90% are shallower than 1,681 ft. Wells drilled since 2016 have a median depth of 1,140 ft.

How much does it cost to drill a well in Lyman County?

Applying published per-foot rates to the local median depth of 1,140 ft: drilling and casing alone typically runs $28,500–$74,100; a complete system including pump, pressure tank, and hookup typically runs $68,400–$114,000. Actual quotes depend on site access, geology, and casing requirements.

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Drilled depth distribution

0–50 ft 43 50–100 ft 6 100–150 ft 0 150–200 ft 1 200–300 ft 0 300–400 ft 1 400–600 ft 1 600+ ft 472

Who drills wells in Lyman County?

Companies by number of wells completed in this county, per the completion reports South Dakota drillers file with DANR.

DrillerWells since 2016
STRETCH'S WELL SERVICE, INC.7
AMERICAN ENGINEERING TESTING, INC.1
PULLMAN WELL DRILLING1
GEOTEK ENGINEERING & TESTING1

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Method: medians computed from SD DANR records (SD DANR NR68 well completion reports, water wells only (monitoring, test-hole, geothermal-loop and dewatering records excluded); depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.